feat(api): implement retry logic for Mistral API calls in receipt import and AI services

2026-04-19 11:31:05 +02:00
parent 15c24df1a7
commit 045f160655
3 changed files with 107 additions and 74 deletions
@@ -47,38 +47,56 @@ Regler:

    const userPrompt = `Produkt: "${productName}"`;

-    let raw: string;
-    try {
-      const response = await fetch(MISTRAL_API_URL, {
-        method: 'POST',
-        headers: {
-          'Content-Type': 'application/json',
-          Authorization: `Bearer ${apiKey}`,
-        },
-        body: JSON.stringify({
-          model: MODEL,
-          messages: [
-            { role: 'system', content: systemPrompt },
-            { role: 'user', content: userPrompt },
-          ],
-          max_tokens: 100,
-          temperature: 0.1,
-          response_format: { type: 'json_object' },
-        }),
-      });
+    let raw = '';
+    const MAX_RETRIES = 3;
+    for (let attempt = 1; attempt <= MAX_RETRIES; attempt++) {
+      try {
+        const response = await fetch(MISTRAL_API_URL, {
+          method: 'POST',
+          headers: {
+            'Content-Type': 'application/json',
+            Authorization: `Bearer ${apiKey}`,
+          },
+          body: JSON.stringify({
+            model: MODEL,
+            messages: [
+              { role: 'system', content: systemPrompt },
+              { role: 'user', content: userPrompt },
+            ],
+            max_tokens: 100,
+            temperature: 0.1,
+            response_format: { type: 'json_object' },
+          }),
+        });

-      if (!response.ok) {
-        const err = await response.text();
-        this.logger.error(`Mistral API-fel: ${response.status} ${err}`);
-        throw new ServiceUnavailableException('AI-tjänsten svarade inte korrekt');
+        if (response.status === 503 || response.status === 429) {
+          const err = await response.text();
+          this.logger.warn(`Mistral API ${response.status} (försök ${attempt}/${MAX_RETRIES}): ${err}`);
+          if (attempt < MAX_RETRIES) {
+            await new Promise((r) => setTimeout(r, attempt * 1500));
+            continue;
+          }
+          throw new ServiceUnavailableException('AI-tjänsten är tillfälligt otillgänglig, försök igen');
+        }
+
+        if (!response.ok) {
+          const err = await response.text();
+          this.logger.error(`Mistral API-fel: ${response.status} ${err}`);
+          throw new ServiceUnavailableException('AI-tjänsten svarade inte korrekt');
+        }
+
+        const data = await response.json() as { choices: { message: { content: string } }[] };
+        raw = data.choices?.[0]?.message?.content ?? '';
+        break;
+      } catch (err) {
+        if (err instanceof ServiceUnavailableException) throw err;
+        this.logger.error(`Mistral fetch-fel (försök ${attempt}/${MAX_RETRIES}): ${String(err)}`);
+        if (attempt < MAX_RETRIES) {
+          await new Promise((r) => setTimeout(r, attempt * 1500));
+          continue;
+        }
+        throw new ServiceUnavailableException('Kunde inte nå AI-tjänsten');
      }
-
-      const data = await response.json() as { choices: { message: { content: string } }[] };
-      raw = data.choices?.[0]?.message?.content ?? '';
-    } catch (err) {
-      if (err instanceof ServiceUnavailableException) throw err;
-      this.logger.error(`Mistral fetch-fel: ${String(err)}`);
-      throw new ServiceUnavailableException('Kunde inte nå AI-tjänsten');
    }

    // Parsa och validera AI-svaret