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Phase 2 cleanup: Remove superseded handler files

Browse source 
Remove index_handler.rs, search_handler.rs, and write.rs which were
superseded by the new routes/ directory structure during Phase 2
implementation. The new routes/ module provides better organization:
- routes/indexes.rs (index lifecycle)
- routes/search.rs (search endpoint)
- routes/documents.rs (document CRUD)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
jedarden 2026-05-09 15:30:12 -04:00
parent cfacb5160e
commit 0e91b6286d
10 changed files with 4854 additions and 6410 deletions
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889f80ebb506d5576a338d3d3808417fca7b58d9
cfacb5160e7acd5c4e95f3a725544f862a163e6c

287
crates/miroir-proxy/src/index_handler.rs
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//! Index lifecycle operations: create, delete, stats.
use crate::state::ProxyState;
use miroir_core::topology::Topology;
use miroir_core::{MiroirError, Result};
use serde_json::{json, Value};
use std::collections::HashMap;
use uuid::Uuid;
/// Index lifecycle executor.
pub struct IndexExecutor {
state: ProxyState,
}
impl IndexExecutor {
pub fn new(state: ProxyState) -> Self {
Self { state }
}
/// Create an index on all nodes.
pub async fn create_index(&self, uid: &str, primary_key: Option<&str>) -> Result<IndexResult> {
let topology = self.state.topology().await;
// Prepare request body
let mut body = json!({
"uid": uid,
});
if let Some(pk) = primary_key {
body["primaryKey"] = json!(pk);
}
let body_bytes = serde_json::to_vec(&body).unwrap();
// Broadcast to all nodes
let mut node_tasks = HashMap::new();
let mut failed_nodes = Vec::new();
for node in topology.nodes() {
match self
.state
.client
.send_to_node(
&topology,
&node.id,
"POST",
"/indexes",
Some(&body_bytes),
&[],
)
.await
{
Ok(resp) if (200..300).contains(&resp.status) => {
if let Some(task_uid) = resp.body.get("taskUid").and_then(|v| v.as_u64()) {
node_tasks.insert(node.id.as_str().to_string(), task_uid);
}
}
_ => {
failed_nodes.push(node.id.as_str().to_string());
}
}
}
if !failed_nodes.is_empty() {
// Rollback: delete from successful nodes
for node_id in node_tasks.keys() {
let _ = self
.state
.client
.send_to_node(
&topology,
&node_id.clone().into(),
"DELETE",
&format!("/indexes/{}", uid),
None,
&[],
)
.await;
}
return Err(MiroirError::Routing(format!(
"Failed to create index on nodes: {:?}",
failed_nodes
)));
}
// Add _miroir_shard to filterable attributes
self.add_miroir_shard_filterable(uid).await?;
let miroir_task_id = format!("mtask-{}", Uuid::new_v4());
Ok(IndexResult {
miroir_task_id,
node_tasks,
})
}
/// Delete an index from all nodes.
pub async fn delete_index(&self, uid: &str) -> Result<IndexResult> {
let topology = self.state.topology().await;
let mut node_tasks = HashMap::new();
let mut failed_nodes = Vec::new();
for node in topology.nodes() {
match self
.state
.client
.send_to_node(
&topology,
&node.id,
"DELETE",
&format!("/indexes/{}", uid),
None,
&[],
)
.await
{
Ok(resp) if (200..300).contains(&resp.status) => {
if let Some(task_uid) = resp.body.get("taskUid").and_then(|v| v.as_u64()) {
node_tasks.insert(node.id.as_str().to_string(), task_uid);
}
}
_ => {
failed_nodes.push(node.id.as_str().to_string());
}
}
}
if !failed_nodes.is_empty() {
return Err(MiroirError::Routing(format!(
"Failed to delete index on nodes: {:?}",
failed_nodes
)));
}
let miroir_task_id = format!("mtask-{}", Uuid::new_v4());
Ok(IndexResult {
miroir_task_id,
node_tasks,
})
}
/// Get aggregated stats for an index.
pub async fn get_stats(&self, uid: &str) -> Result<Value> {
let topology = self.state.topology().await;
let mut total_documents = 0u64;
let mut field_distribution: HashMap<String, u64> = HashMap::new();
let mut failed_nodes = Vec::new();
for node in topology.nodes() {
match self
.state
.client
.send_to_node(
&topology,
&node.id,
"GET",
&format!("/indexes/{}/stats", uid),
None,
&[],
)
.await
{
Ok(resp) if (200..300).contains(&resp.status) => {
// Sum numberOfDocuments
if let Some(count) = resp.body.get("numberOfDocuments").and_then(|v| v.as_u64()) {
total_documents += count;
}
// Merge fieldDistribution
if let Some(fields) = resp.body.get("fieldDistribution").and_then(|v| v.as_object()) {
for (field, count) in fields {
let count_val = count.as_u64().unwrap_or(0);
*field_distribution.entry(field.clone()).or_insert(0) += count_val;
}
}
}
_ => {
failed_nodes.push(node.id.as_str().to_string());
}
}
}
if failed_nodes.len() > topology.nodes().count() / 2 {
return Err(MiroirError::Routing(format!(
"Failed to get stats from majority of nodes: {:?}",
failed_nodes
)));
}
Ok(json!({
"numberOfDocuments": total_documents,
"fieldDistribution": field_distribution,
}))
}
/// Add _miroir_shard to filterable attributes.
async fn add_miroir_shard_filterable(&self, uid: &str) -> Result<()> {
let topology = self.state.topology().await;
// Get current settings
let first_node = topology.nodes().next();
if let Some(node) = first_node {
if let Ok(resp) = self
.state
.client
.send_to_node(
&topology,
&node.id,
"GET",
&format!("/indexes/{}/settings/filterable-attributes", uid),
None,
&[],
)
.await
{
if let Some(attrs) = resp.body.as_array() {
let mut attrs_vec: Vec<String> = attrs
.iter()
.filter_map(|v| v.as_str().map(|s| s.to_string()))
.collect();
if !attrs_vec.contains(&"_miroir_shard".to_string()) {
attrs_vec.push("_miroir_shard".to_string());
let body = serde_json::to_vec(&attrs_vec).unwrap();
// Broadcast to all nodes
for node in topology.nodes() {
let _ = self
.state
.client
.send_to_node(
&topology,
&node.id,
"PUT",
&format!("/indexes/{}/settings/filterable-attributes", uid),
Some(&body),
&[],
)
.await;
}
}
}
}
}
Ok(())
}
}
/// Result of an index operation.
#[derive(Debug, Clone)]
pub struct IndexResult {
pub miroir_task_id: String,
pub node_tasks: HashMap<String, u64>,
}
#[cfg(test)]
mod tests {
use super::*;
use miroir_core::config::MiroirConfig;
#[tokio::test]
async fn test_index_result_creation() {
let result = IndexResult {
miroir_task_id: "mtask-123".to_string(),
node_tasks: HashMap::new(),
};
assert_eq!(result.miroir_task_id, "mtask-123");
}
fn create_test_executor() -> IndexExecutor {
let config = MiroirConfig {
shards: 64,
replication_factor: 2,
..Default::default()
};
let state = ProxyState::new(config).unwrap();
IndexExecutor::new(state)
}
}

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crates/miroir-proxy/src/search_handler.rs
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//! Search read path: scatter-gather with result merging.
use crate::scatter::HttpScatter;
use crate::state::ProxyState;
use miroir_core::config::UnavailableShardPolicy;
use miroir_core::merger::{Merger, MergerImpl, ShardResponse};
use miroir_core::router;
use miroir_core::scatter::ScatterRequest;
use miroir_core::topology::{NodeId, Topology};
use miroir_core::{MiroirError, Result};
use serde_json::{json, Value};
use std::collections::HashMap;
/// Search executor for scatter-gather queries.
pub struct SearchExecutor {
state: ProxyState,
scatter: HttpScatter,
merger: MergerImpl,
}
impl SearchExecutor {
pub fn new(state: ProxyState) -> Self {
let node_timeout_ms = state.config.scatter.node_timeout_ms;
let scatter = HttpScatter::new(state.client.clone(), node_timeout_ms);
Self {
state,
scatter,
merger: MergerImpl,
}
}
/// Execute a search query across the covering set.
pub async fn search(
&self,
index: &str,
query: Value,
offset: usize,
limit: usize,
) -> Result<SearchResult> {
let topology = self.state.topology().await;
let shard_count = self.state.config.shards;
let rf = self.state.config.replication_factor as usize;
let replica_groups = topology.replica_group_count();
// Select query group
let query_seq = self.state.next_query_seq();
let group_id = router::query_group(query_seq, replica_groups);
let group = topology
.group(group_id)
.ok_or_else(|| MiroirError::Routing(format!("Group {} not found", group_id)))?;
// Build covering set
let covering = router::covering_set(shard_count, group, rf, query_seq);
// Deduplicate nodes
let unique_nodes: std::collections::HashSet<_> = covering.into_iter().collect();
// Prepare search query
let mut query_with_score = query.clone();
if let Some(obj) = query_with_score.as_object_mut() {
obj.insert("showRankingScore".to_string(), json!(true));
}
let body = serde_json::to_vec(&query_with_score).unwrap();
let path = format!("/indexes/{}/search", index);
let request = ScatterRequest {
body,
headers: vec![],
method: "POST".to_string(),
path,
};
// Get policy from config
let policy = match self.state.config.scatter.unavailable_shard_policy.as_str() {
"error" => UnavailableShardPolicy::Error,
"fallback" => UnavailableShardPolicy::Fallback,
_ => UnavailableShardPolicy::Partial,
};
// Scatter to covering set
let response = self
.scatter
.scatter(&topology, unique_nodes.into_iter().collect(), request, policy)
.await?;
// Convert node responses to shard responses
let mut shard_responses: Vec<ShardResponse> = Vec::new();
let mut degraded_shards = Vec::new();
for node_resp in response.responses {
// Parse response as shard response (all shards from this node)
shard_responses.push(ShardResponse {
shard_id: 0, // We'll merge all responses together
body: serde_json::from_slice(&node_resp.body).unwrap_or(json!({})),
success: true,
});
}
for failed_node in &response.failed {
degraded_shards.push(failed_node.as_str().to_string());
}
// Check if client requested ranking score
let client_requested_score = query
.get("showRankingScore")
.and_then(|v| v.as_bool())
.unwrap_or(false);
// Merge results
let merged = self
.merger
.merge(shard_responses, offset, limit, client_requested_score)?;
// Build response
let mut result = json!({
"hits": merged.hits,
"processingTimeMs": merged.processing_time_ms,
"query": query,
});
if !merged.facets.is_null() {
if let Some(obj) = result.as_object_mut() {
obj.insert("facetDistribution".to_string(), merged.facets);
}
}
// Add estimatedTotalHits if present
if merged.total_hits > 0 {
if let Some(obj) = result.as_object_mut() {
obj.insert("estimatedTotalHits".to_string(), json!(merged.total_hits));
}
}
Ok(SearchResult {
body: result,
degraded: merged.degraded,
degraded_shards,
})
}
}
/// Result of a search operation.
#[derive(Debug, Clone)]
pub struct SearchResult {
pub body: Value,
pub degraded: bool,
pub degraded_shards: Vec<String>,
}
#[cfg(test)]
mod tests {
use super::*;
use miroir_core::config::MiroirConfig;
#[tokio::test]
async fn test_search_result_creation() {
let result = SearchResult {
body: json!({"hits": []}),
degraded: false,
degraded_shards: vec![],
};
assert_eq!(result.body["hits"].as_array().unwrap().len(), 0);
assert!(!result.degraded);
}
fn create_test_executor() -> SearchExecutor {
let config = MiroirConfig {
shards: 64,
replication_factor: 2,
..Default::default()
};
let state = ProxyState::new(config).unwrap();
SearchExecutor::new(state)
}
}

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crates/miroir-proxy/src/write.rs
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//! Write path: document routing with hash-based sharding and quorum.
use crate::client::NodeClient;
use crate::error_response::ErrorResponse;
use crate::scatter::HttpScatter;
use crate::state::ProxyState;
use miroir_core::config::UnavailableShardPolicy;
use miroir_core::router;
use miroir_core::scatter::ScatterRequest;
use miroir_core::topology::Topology;
use miroir_core::{MiroirError, Result};
use serde_json::{json, Map, Value};
use std::collections::{HashMap, HashSet};
use std::sync::atomic::Ordering;
use uuid::Uuid;
/// Write path executor for document batches.
pub struct WriteExecutor {
state: ProxyState,
scatter: HttpScatter,
}
impl WriteExecutor {
pub fn new(state: ProxyState) -> Self {
let node_timeout_ms = state.config.scatter.node_timeout_ms;
let scatter = HttpScatter::new(state.client.clone(), node_timeout_ms);
Self { state, scatter }
}
/// Execute a document write (add/replace) for an index.
pub async fn write_documents(
&self,
index: &str,
documents: Vec<Value>,
primary_key: Option<&str>,
) -> Result<WriteResult> {
// Validate primary key is known
let pk = self.resolve_primary_key(index, primary_key).await?;
// Hash documents by shard and group by target nodes
let topology = self.state.topology().await;
let shard_count = self.state.config.shards;
let rf = self.state.config.replication_factor as usize;
let mut shard_groups: HashMap<u32, Vec<Value>> = HashMap::new();
let mut reserved_field_errors = Vec::new();
for (idx, doc) in documents.iter().enumerate() {
// Check for reserved fields
if let Some(obj) = doc.as_object() {
if obj.contains_key("_miroir_shard") {
reserved_field_errors.push(idx);
continue;
}
}
// Extract primary key value
let pk_value = self.extract_pk_value(doc, &pk)?;
let shard_id = router::shard_for_key(&pk_value, shard_count);
// Inject _miroir_shard
let mut doc_with_shard = doc.clone();
if let Some(obj) = doc_with_shard.as_object_mut() {
obj.insert("_miroir_shard".to_string(), json!(shard_id));
}
shard_groups
.entry(shard_id)
.or_insert_with(Vec::new)
.push(doc_with_shard);
}
if !reserved_field_errors.is_empty() {
return Err(MiroirError::Routing(format!(
"{} documents contain reserved field _miroir_shard: {:?}",
reserved_field_errors.len(),
reserved_field_errors
)));
}
// For each shard, compute write targets and group by node
let mut node_batches: HashMap<String, Vec<Value>> = HashMap::new();
for (shard_id, docs) in shard_groups {
let targets = router::write_targets(shard_id, &topology);
for target in targets {
let node = topology
.node(&target)
.ok_or_else(|| MiroirError::Routing(format!("node {} not found", target.as_str())))?;
node_batches
.entry(node.id.as_str().to_string())
.or_insert_with(Vec::new)
.extend(docs.clone());
}
}
// Fan out writes to all nodes
let miroir_task_id = format!("mtask-{}", Uuid::new_v4());
let mut node_tasks: HashMap<String, u64> = HashMap::new();
let mut group_quorum: HashMap<u32, GroupQuorum> = HashMap::new();
let mut failed_nodes = Vec::new();
for (node_id, docs) in node_batches {
let body = serde_json::to_vec(&docs).unwrap();
let path = format!("/indexes/{}/documents", index);
let request = ScatterRequest {
body,
headers: vec![],
method: "POST".to_string(),
path,
};
// Send to this node
let result = self
.scatter
.scatter(&topology, vec![node_id.clone().into()], request, UnavailableShardPolicy::Partial)
.await?;
if let Some(resp) = result.responses.first() {
// Parse response to get task UID
if let Some(task_uid) = resp.body.get("taskUid").and_then(|v| v.as_u64()) {
node_tasks.insert(node_id.clone(), task_uid);
// Track per-group quorum
if let Some(node) = topology.node(&node_id.clone().into()) {
let group_id = node.replica_group;
let quorum = group_quorum.entry(group_id).or_insert_with(|| {
GroupQuorum {
group_id,
rf,
acked: HashSet::new(),
}
});
quorum.acked.insert(node_id.clone());
}
} else {
failed_nodes.push(node_id);
}
} else {
failed_nodes.push(node_id);
}
}
// Check quorum - write succeeds if at least one group met quorum
let degraded_groups = self.check_quorum(&group_quorum, &topology);
let any_group_met_quorum = group_quorum.values().any(|q| q.met_quorum());
if !any_group_met_quorum {
return Err(MiroirError::Routing("No replica group met quorum".to_string()));
}
Ok(WriteResult {
miroir_task_id,
node_tasks,
degraded_groups,
})
}
async fn resolve_primary_key(&self, index: &str, primary_key: Option<&str>) -> Result<String> {
if let Some(pk) = primary_key {
return Ok(pk.to_string());
}
// Query index to get primary key
let topology = self.state.topology().await;
let first_node = topology.nodes().next();
if let Some(node) = first_node {
let resp = self
.state
.client
.send_to_node(&topology, &node.id, "GET", &format!("/indexes/{}", index), None, &[])
.await?;
if let Some(pk) = resp.body.get("primaryKey").and_then(|v| v.as_str()) {
return Ok(pk.to_string());
}
}
Err(MiroirError::Routing(format!(
"Index {} does not have a primary key",
index
)))
}
fn extract_pk_value(&self, doc: &Value, pk: &str) -> Result<String> {
let obj = doc
.as_object()
.ok_or_else(|| MiroirError::Routing("Document is not an object".to_string()))?;
let value = obj.get(pk).ok_or_else(|| {
MiroirError::Routing(format!("Primary key '{}' not found in document", pk))
})?;
Ok(value.to_string())
}
fn check_quorum(&self, group_quorum: &HashMap<u32, GroupQuorum>, topology: &Topology) -> Vec<u32> {
let mut degraded = Vec::new();
for (group_id, quorum) in group_quorum {
if !quorum.met_quorum() {
degraded.push(*group_id);
}
}
degraded
}
}
/// Result of a document write operation.
#[derive(Debug, Clone)]
pub struct WriteResult {
pub miroir_task_id: String,
pub node_tasks: HashMap<String, u64>,
pub degraded_groups: Vec<u32>,
}
/// Quorum tracking for a replica group.
#[derive(Debug)]
struct GroupQuorum {
group_id: u32,
rf: usize,
acked: HashSet<String>,
}
impl GroupQuorum {
fn met_quorum(&self) -> bool {
let required = (self.rf / 2) + 1;
self.acked.len() >= required
}
}
#[cfg(test)]
mod tests {
use super::*;
use miroir_core::config::{MiroirConfig, NodeConfig, ServerConfig};
use miroir_core::topology::{Node, NodeId, Topology};
#[tokio::test]
async fn test_extract_pk_value() {
let doc = json!({"id": "test123", "name": "foo"});
let executor = create_test_executor();
let result = executor.extract_pk_value(&doc, "id").unwrap();
assert_eq!(result, "\"test123\"");
}
#[tokio::test]
async fn test_extract_pk_value_missing() {
let doc = json!({"name": "foo"});
let executor = create_test_executor();
let result = executor.extract_pk_value(&doc, "id");
assert!(result.is_err());
}
#[tokio::test]
async fn test_group_quorum_met() {
let quorum = GroupQuorum {
group_id: 0,
rf: 3,
acked: HashSet::from(["node1".to_string(), "node2".to_string()]),
};
assert!(quorum.met_quorum()); // 2 >= (3/2)+1 = 2
}
#[tokio::test]
async fn test_group_quorum_not_met() {
let quorum = GroupQuorum {
group_id: 0,
rf: 3,
acked: HashSet::from(["node1".to_string()]),
};
assert!(!quorum.met_quorum()); // 1 < 2
}
fn create_test_executor() -> WriteExecutor {
let config = MiroirConfig {
shards: 64,
replication_factor: 2,
..Default::default()
};
let state = ProxyState::new(config).unwrap();
WriteExecutor::new(state)
}
}

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notes/miroir-9dj-phase2-completion.md Normal file
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# Phase 2 — Proxy + API Surface: Completion Verification
## Date
2026-05-09
## Scope Verification
### 1. axum server listening on port 7700 and metrics on 9090
**Status:** ✅ COMPLETE
- File: `crates/miroir-proxy/src/main.rs`
- Server configured to listen on `server.port` (default 7700)
- Metrics server on port 9090 with `/metrics` endpoint
### 2. Write path implementation
**Status:** ✅ COMPLETE
- File: `crates/miroir-proxy/src/routes/documents.rs`
- Hash primary key to get shard ID (`shard_for_key()`)
- Inject `_miroir_shard` field into documents
- Fan out to RG × RF nodes
- Per-group quorum (`floor(RF/2)+1`)
- `X-Miroir-Degraded` header on any group missing quorum
- 503 `miroir_no_quorum` only when no group met quorum
### 3. Read path implementation
**Status:** ✅ COMPLETE
- File: `crates/miroir-proxy/src/routes/search.rs`
- Pick group via `query_seq % RG`
- Build intra-group covering set
- Scatter search to covering set nodes
- Merge by `_rankingScore`
- Strip `_miroir_shard` always + `_rankingScore` if not requested
- Aggregate facets + estimatedTotalHits
- Report max processingTimeMs
- Group fallback when covering set has holes
### 4. Index lifecycle
**Status:** ✅ COMPLETE
- File: `crates/miroir-proxy/src/routes/indexes.rs`
- Create broadcasts + atomically injects `_miroir_shard` into filterableAttributes
- Settings sequential apply-with-rollback (in `routes/settings.rs`)
- Delete broadcasts to all nodes
- Stats aggregate `numberOfDocuments` + merge `fieldDistribution`
### 5. Tasks
**Status:** ✅ COMPLETE
- File: `crates/miroir-proxy/src/routes/tasks.rs`
- `GET /tasks` - List all tasks with optional filters
- `GET /tasks/{uid}` - Get specific task with aggregation
- `DELETE /tasks/{uid}` - Cancel/delete task
- Task ID reconciliation across nodes
- Aggregated status from all nodes
### 6. Error shape
**Status:** ✅ COMPLETE
- File: `crates/miroir-proxy/src/error_response.rs`
- Every error matches Meilisearch `{message, code, type, link}`
- Miroir-specific `miroir_*` codes:
- `miroir_primary_key_required`
- `miroir_no_quorum`
- `miroir_shard_unavailable`
- `miroir_reserved_field`
### 7. Reserved fields contract
**Status:** ✅ COMPLETE
- `_miroir_shard` always-reserved (injected on write, stripped on read)
- `_miroir_updated_at` / `_miroir_expires_at` reserved only when feature flag is on (Phase 5)
### 8. Auth
**Status:** ✅ COMPLETE
- File: `crates/miroir-proxy/src/auth.rs`
- Master-key/admin-key bearer dispatch per §5 rules 2-5
- JWT path stubbed (Phase 5)
- Public endpoints: `/health`, `/version`
- Admin endpoints: `/admin/*`, `/_miroir/*`
### 9. Admin endpoints
**Status:** ✅ COMPLETE
- File: `crates/miroir-proxy/src/routes/admin.rs`
- `/health` - Public health check
- `/version` - Version information
- `/_miroir/ready` - Readiness check
- `/_miroir/topology` - Cluster topology information
- `/_miroir/shards` - Shard assignment information
- `/_miroir/metrics` - Prometheus metrics (admin-key gated)
### 10. Middleware
**Status:** ✅ COMPLETE
- File: `crates/miroir-proxy/src/middleware.rs`
- Structured JSON log per plan §10
- Prometheus metrics:
- `miroir_request_duration_seconds`
- `miroir_requests_total`
- `miroir_requests_in_flight`
- `miroir_degraded_requests_total`
- `miroir_no_quorum_requests_total`
### 11. Scatter-gather dispatcher
**Status:** ✅ COMPLETE
- File: `crates/miroir-proxy/src/scatter.rs`
- Per-node retries with orchestrator-side retry cache
- Cache keyed by `sha256(batch || target_node || idempotency_or_mtask)`
- File: `crates/miroir-proxy/src/retry_cache.rs`
## Integration Tests
**Status:** ✅ TESTS DEFINED
- File: `crates/miroir-proxy/tests/phase2_integration_test.rs`
- All DoD tests defined with `#[ignore]` for running against live cluster
### Test Coverage:
1. ✅ 1000 documents indexed across 3 nodes, each retrievable by ID
2. ✅ Unique-keyword search finds every doc exactly once
3. ✅ Facet aggregation across 3 color values sums correctly
4. ✅ Offset/limit paging preserves global ordering
5. ✅ Write with one group completely down still succeeds and stamps X-Miroir-Degraded
6. ✅ Error-format parity test
7. ✅ GET /_miroir/topology matches expected shape
8. ✅ Index stats aggregation
## Files Modified/Created
### Created:
- `crates/miroir-proxy/src/main.rs` - Main entry point
- `crates/miroir-proxy/src/lib.rs` - Library exports
- `crates/miroir-proxy/src/auth.rs` - Authentication middleware
- `crates/miroir-proxy/src/client.rs` - HTTP client for node communication
- `crates/miroir-proxy/src/error_response.rs` - Meilisearch-compatible error responses
- `crates/miroir-proxy/src/middleware.rs` - Logging and metrics middleware
- `crates/miroir-proxy/src/retry_cache.rs` - Retry cache for idempotency
- `crates/miroir-proxy/src/scatter.rs` - HTTP scatter-gather execution
- `crates/miroir-proxy/src/state.rs` - Shared application state
- `crates/miroir-proxy/src/task_manager.rs` - Task ID generation and reconciliation
- `crates/miroir-proxy/src/routes/` - Route handlers directory
- `mod.rs` - Route module exports
- `admin.rs` - Admin endpoints
- `documents.rs` - Document CRUD routes
- `health.rs` - Health check endpoints
- `indexes.rs` - Index lifecycle routes
- `search.rs` - Search route
- `settings.rs` - Settings routes with rollback
- `tasks.rs` - Task routes
- `crates/miroir-proxy/tests/phase2_integration_test.rs` - Integration tests
### Removed (cleanup):
- `crates/miroir-proxy/src/search_handler.rs` - Superseded by routes/search.rs
- `crates/miroir-proxy/src/index_handler.rs` - Superseded by routes/indexes.rs
- `crates/miroir-proxy/src/write.rs` - Superseded by routes/documents.rs
## Verification Against Plan §5 API Surface
### Meilisearch API Compatibility:
- ✅ POST /indexes - Create index
- ✅ GET /indexes - List indexes
- ✅ GET /indexes/{uid} - Get index metadata
- ✅ DELETE /indexes/{uid} - Delete index
- ✅ GET /indexes/{uid}/stats - Get index stats
- ✅ GET /indexes/{uid}/settings - Get settings
- ✅ PATCH /indexes/{uid}/settings - Update settings (with rollback)
- ✅ POST /indexes/{uid}/documents - Add documents
- ✅ PUT /indexes/{uid}/documents - Update documents
- ✅ DELETE /indexes/{uid}/documents - Delete by filter
- ✅ DELETE /indexes/{uid}/documents/{id} - Delete by ID
- ✅ GET /indexes/{uid}/documents/{id} - Get document by ID
- ✅ POST /indexes/{uid}/search - Search documents
- ✅ GET /tasks - List tasks
- ✅ GET /tasks/{uid} - Get task status
- ✅ DELETE /tasks/{uid} - Cancel task
### Miroir-specific endpoints:
- ✅ GET /health - Public health
- ✅ GET /version - Version info
- ✅ GET /_miroir/ready - Readiness check
- ✅ GET /_miroir/topology - Cluster topology
- ✅ GET /_miroir/shards - Shard assignments
- ✅ GET /_miroir/metrics - Prometheus metrics
## Conclusion
Phase 2 implementation is **COMPLETE**. All components from the DoD checklist have been implemented:
1. ✅ HTTP server on ports 7700 (main) and 9090 (metrics)
2. ✅ Write path with shard hashing, _miroir_shard injection, quorum, degraded header
3. ✅ Read path with group selection, covering set, merge by _rankingScore
4. ✅ Index lifecycle with _miroir_shard injection, settings rollback
5. ✅ Tasks with reconciliation
6. ✅ Error shape matching Meilisearch
7. ✅ Reserved fields handling
8. ✅ Auth (master-key/admin-key bearer dispatch)
9. ✅ Admin endpoints
10. ✅ Middleware (logging, metrics)
11. ✅ Retry cache for idempotency
Integration tests are defined and ready to run against a live Meilisearch cluster.