ondc-campaign-sdk/src/api.ts

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export async function fetchLiveCampaignProducts(
  withTransaction: boolean = false,
  campignOrder: number = 1
): Promise<any> {
  try {
    // Get or generate user ID from localStorage
    let userId = "";
    if (typeof window !== "undefined") {
      // Check if userId exists in localStorage
      const storedUserId = localStorage.getItem("ondc_user_id");

      // If userId doesn't exist, generate a UUID and store it
      if (!storedUserId) {
        userId = crypto.randomUUID();
        localStorage.setItem("ondc_user_id", userId);
      } else {
        userId = storedUserId;
      }
    }

    // First fetch the active campaign data
    const response = await fetch(
      "https://ondc-sdk.samhita.org/api/campaigns/active?order=" + campignOrder
    );
    if (!response.ok) {
      throw new Error("Failed to fetch campaign data");
    }

    const campaignData = await response.json();
    if (!campaignData._id) {
      throw new Error("No campaign id found");
    }

    // If transaction is not required or not in browser, return campaign data only
    if (!withTransaction || typeof window === "undefined") {
      return campaignData;
    }

    // Get actual current URL for transaction
    const currentUrl = window.location.href;

    interface TransactionPayload {
      company_url: string;
      user_id: string;
      campaign_id: string;
    }

    // Create transaction with campaign_id
    const transactionPayload: TransactionPayload = {
      company_url: currentUrl,
      user_id: userId,
      campaign_id: campaignData._id
    };

    const transactionResponse = await fetch(
      "https://ondc-sdk.samhita.org/api/transactions/create",
      {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify(transactionPayload),
      }
    );

    if (!transactionResponse.ok) {
      throw new Error(transactionResponse.statusText);
    }

    // Get transaction data
    const transactionData = await transactionResponse.json();

    return {
      campaign: campaignData,
      transaction: transactionData,
      user_id: userId,
    };
  } catch (error) {
    console.error("Error fetching campaign products:", error);
    return { message: "No active campaign found", error: error };
  }
}

export async function fetchLiveCampaignBasedOnCount(
  count: string,
  withTransaction: boolean = false
) {
  try {
    // Get or generate user ID from localStorage
    let userId = "";
    if (typeof window !== "undefined") {
      // Check if userId exists in localStorage
      const storedUserId = localStorage.getItem("ondc_user_id");

      // If userId doesn't exist, generate a UUID and store it
      if (!storedUserId) {
        userId = crypto.randomUUID();
        localStorage.setItem("ondc_user_id", userId);
      } else {
        userId = storedUserId;
      }
    }

    // First fetch the campaigns data
    const response = await fetch(
      "https://ondc-sdk.samhita.org/api/campaigns/active-based-on-count?count=" +
        count
    );
    if (!response.ok) {
      throw new Error("Failed to fetch campaigns data");
    }

    const campaignsData = await response.json();

    // If transaction is not required or not in browser, return campaigns data only
    if (!withTransaction || typeof window === "undefined") {
      return campaignsData;
    }

    // Get actual current URL for transaction
    const currentUrl = window.location.href;

    interface TransactionPayload {
      company_url: string;
      user_id: string;
      campaign_id?: string;
    }

    // Create transaction without campaign_id since this is for multiple campaigns
    const transactionPayload: TransactionPayload = {
      company_url: currentUrl,
      user_id: userId,
      campaign_id : campaignsData.map((campaign: any) => campaign._id)
    };

    const transactionResponse = await fetch(
      "https://ondc-sdk.samhita.org/api/transactions/create",
      {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify(transactionPayload),
      }
    );

    if (!transactionResponse.ok) {
      throw new Error(transactionResponse.statusText);
    }

    // Get transaction data
    const transactionData = await transactionResponse.json();

    return {
      campaigns: campaignsData,
      transaction: transactionData,
      user_id: userId,
    };
  } catch (error) {
    console.error("Error fetching campaigns:", error);
    return { message: "No active campaigns found", error: error };
  }
}