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| function getPublicUiError(status: number): string { | |
| // Message volontairement generique pour eviter les erreurs techniques en UI. | |
| if (status === 429) { | |
| return "Service momentanément indisponible. Merci de réessayer."; | |
| } | |
| return "Une erreur temporaire est survenue. Merci de réessayer."; | |
| } | |
| function extractApiMessage(payload: unknown, status: number): string { | |
| // Priorite aux messages explicites fournis par l'API. | |
| if (payload && typeof payload === "object") { | |
| const record = payload as Record<string, unknown>; | |
| const detail = record.detail; | |
| if (typeof detail === "string" && detail.trim()) { | |
| return detail; | |
| } | |
| if (detail && typeof detail === "object") { | |
| const detailRecord = detail as Record<string, unknown>; | |
| if (typeof detailRecord.message === "string" && detailRecord.message.trim()) { | |
| return detailRecord.message; | |
| } | |
| } | |
| } | |
| return getPublicUiError(status); | |
| } | |
| async function readJsonSafely(response: Response): Promise<unknown | null> { | |
| // Evite les crashes JSON.parse quand le backend repond en texte/plain. | |
| const raw = await response.text(); | |
| if (!raw) { | |
| return null; | |
| } | |
| try { | |
| return JSON.parse(raw); | |
| } catch { | |
| return null; | |
| } | |
| } | |
| export async function postJson<T>(url: string, body: unknown): Promise<T> { | |
| // Client HTTP robuste: jamais d'erreur de parsing brute exposee a l'utilisateur. | |
| const response = await fetch(url, { | |
| method: "POST", | |
| headers: { "Content-Type": "application/json" }, | |
| body: JSON.stringify(body), | |
| }); | |
| const data = await readJsonSafely(response); | |
| if (!response.ok) { | |
| throw new Error(extractApiMessage(data, response.status)); | |
| } | |
| if (data === null) { | |
| throw new Error(getPublicUiError(500)); | |
| } | |
| return data as T; | |
| } | |
| export async function getJson<T>(url: string): Promise<T> { | |
| // Lecture GET robuste avec meme convention de message UI. | |
| const response = await fetch(url, { method: "GET" }); | |
| const data = await readJsonSafely(response); | |
| if (!response.ok) { | |
| throw new Error(extractApiMessage(data, response.status)); | |
| } | |
| if (data === null) { | |
| throw new Error(getPublicUiError(500)); | |
| } | |
| return data as T; | |
| } | |